kølemadsen.dk is a .dk domain served by 2 nameservers (jihoon.ns.cloudflare.com, june.ns.cloudflare.com). It was registered on 21 August 2013 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.51.34 is hosted by Cloudflare, Inc. (AS13335). The zone is DNSSEC-signed and validates, has no DMARC policy and is reachable over IPv6. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 104.21.51.34 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.220.120 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.99.220.24 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3035::6815:3322 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3036::ac43:dc78 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.51.34,172.67.220.120 ech=AEX+DQBBKgAgACDIjZZ8c5lFDU5IzMo0uf5xMkpIjtshrETGixZHNSoUaAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::6815:3322,2606:4700:3036::ac43:dc78 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 5 | 10 | 5061 | sipfed.online.lync.com |
| www | 104.21.51.34 172.67.220.120 2606:4700:3031::ac43:dc78 2606:4700:3037::6815:3322 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network kølemadsen.dk: 104.21.51.34 172.67.220.120 2606:4700:3031::ac43:dc78 2606:4700:3037::6815:3322 (AS13335) www.kølemadsen.dk: 104.21.51.34 172.67.220.120 2606:4700:3031::ac43:dc78 2606:4700:3037::6815:3322 (AS13335) |
| Wildcard | No |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | resolution failed: ncache nxdomain |
| Field | Value |
|---|---|
| Serial | 2404091560 |
| Primary NS (MNAME) | jihoon.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | NYGREEN IT ApS |
| Registered | 2013-08-21 |
| Expires | 2027-08-31 (308d) |
Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).
| Domain | Registrar |
|---|---|
| koelemadsen.dk | NYGREEN IT ApS |
| kolemadsen.dk | FIONIA IT ApS |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 11:45:19 | 435ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-26 07:31:07 | 537ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-16 10:17:20 | 1535ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-09 16:23:13 | 1007ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-04 09:03:27 | 523ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-07-18 16:47:49 | 856ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-07-11 22:51:53 | 880ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-20 02:37:18 shown | 537ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-06-17 11:49:38 | 797ms | 2 NS 2 A 0 MX | 🔒 Secure |